变态混凝土浆液扩散规律及注浆孔对比试验研究  

Metamorphic concrete grout diffusion regularity and grouting hole contrast test research

作　　者：孙琰[1] 莫世远 张营营[1] 辛欣[1] 

机构地区：[1]三峡大学水利与环境学院,湖北宜昌443002

出　　处：《黑龙江水利》2015年第10期17-22,共6页

摘　　要：变态混凝土成孔注浆的扩散规律是碾压混凝土坝迎水面中注浆孔设计的重要依据。本文通过对变态混凝土拌合物进行简单分析,然后建立数值计算模型,应用FLUENT软件模拟浆液的渗透流动,计算了单排孔注浆和双排孔注浆模式下,浆液随计算时间进程的扩散半径,分析了注浆浆液扩散半径与时间的关系,以及注浆量与时间的关系,总结了浆液扩散的规律,选出适合的注浆管小孔布置,并运用到具体的工程实例予以验证。验证结果表明注浆浆液扩散半径的检测结果与数值计算模拟结果基本相符,其对类似注浆工程中注浆方案的确定具有一定的借鉴意义。The diffusion law of Metamorphosis concrete into the hole grouting is the important basis of the positive side of the roller compacted concrete dam grouting hole design. Based on a simple analysis about metamorphosis concrete composition, and then create numerical models, using FLUENT software to simulate the penetration of the slurry flow, calculating the slurry diffusion radius of single and double row of holes patterns over the time course, analyzing the relationship between the grout diffusion radius and time and the relationship between grouting quantity and time, summarizing the laws of grouting diffusion, selecting the optimum aperture disposed of grouting pipe, and apply to the specific project examples to be verified, verification results show that the grout diffusion radius of test results and numerical models results are consistent. It has a certain significance for similar grouting project to choice grouting scheme.

关 键 词：变态混凝土 注浆孔 数值计算 扩散半径 

分 类 号：TV543.15[水利工程—水利水电工程]